PRELIMINARY NUMERICAL STUDIES FOR THE IMPROVEMENT OF THE VENTILATION SYSTEM OF THE CREW QUARTERS ON BOARD OF THE INTERNATIONAL SPACE STATION

Preliminary Numerical Studies for the Improvement of the Ventilation System of the Crew Quarters on Board of the International Space Station

The current concept of Crew Quarters (CQ) aboard the ISS has several issues as recorded by NASA and ESA, the most important ones pertaining to the noise levels and the accumulation of CO2.Currently, 13% and 6%, respectively, of the total mass and CLOVE OIL volume of a CQ are allocated to acoustic reductions.Interplanetary missions, unlike the low o

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Fourier Series Approximation of Vertical Walking Force-Time History through Frequentist and Bayesian Inference

The increased ambition of architects coupled with advancements in structural materials, as well as the rapidly increasing pressure on civil engineering sector to reduce embodied carbon, have resulted in longer spans and more slender pedestrian structures.These structures often have one or more low natural frequencies in the range of human walking a

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Assessing the risk of dengue virus transmission in a non-endemic city surrounded by endemic and hyperendemic areas

Objective: To assess the potential risk of dengue transmission in a non-endemic city using a spatial epidemiological approach.Methods: Past dengue exposure of the general population was examined by dengue virus (DENV) IgG testing of AHCC archived samples from voluntary blood donors.Vector intensities were determined by local ovitrap index (OI).Anal

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Investigating the hydrostatic and hydrodynamic behaviour of large size butterfly valves using experimental and numerical methods

In this paper, c.For this purpose, stress distribution and deformation of the major parts of the valve and also, the hydrodynamic torque, which is applied to the valve-disk, have been calculated at different opening angles of the disk.To carry out the numerical analysis, coupled Computational Fluid Dynamics (CFD) and General Health Finite Element b

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